backend engineer ruby

About BreeBree is a consumer finance platform that brings better, faster, and cheaper financial services to over half the Canadian population who live paycheck to paycheck. We operate in a huge, but overlooked market in a country with the least amount of financial technology innovation in the developed world. Our first act is to become the cheapest and best...

Independently own larged-scoped projects from initial discovery through launch with a focus on outcomes and customer impact Collaborate with a cross functional team to find solutions to customer challenges Improve the performance, reliability, and scalability of our existing systems Promote engineering excellence through technical leadership,...

Who we are:Sardine is the leading agentic risk platform for fighting financial crime. Our integrated solution unifies data across risk teams to help organizations stop fraud in real time, prevent AI-driven attacks, and automate fraud and AML operations. Sardine’s platform is strengthened by one of the fastest-growing fraud consortiums in the market,...

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Observability team builds the platform every Affirm engineer relies on to understand the behavior and performance of our systems. Our platform ingests 200+ TB/day of metrics,...

Join Power Factors as a Senior Backend Engineer focused on data innovation and quality in Montreal. Contribute to designing ETL systems that support sustainable energy analytics. As part of our Innovation team, you will enhance the capabilities of renewable energy solutions by building scalable data pipelines. Your responsibility will extend to ensuring the...

Build secure identity services at Affirm using Python or Kotlin while working remotely from eligible Canadian provinces. Authentication is central to this customer-facing engineering work. As a mid-engineering Software Engineer II in Information Security, you will contribute to customer identity and access management capabilities. You will develop backend...

Plooto is looking for a Lead Backend Engineer to create scalable systems that enhance financial insights for SMBs. Bring your C# and Azure expertise to our innovative team.In the role of Lead Backend Engineer, you will design and develop high-throughput cloud-native systems that drive cash flow management. At Plooto, you’ll not only contribute to system...

Contribute to the future of legal technology as a Backend Software Engineer at Harvey in Toronto. Engage in a hybrid work model while creating innovative user-facing features and robust backend infrastructure. Our rapidly growing team is seeking engineers passionate about developing AI-powered solutions for leading law firms. In this role, you'll design...

About BreeBree is a consumer finance platform that brings better, faster, and cheaper financial services to over half the Canadian population who live paycheck to paycheck. We operate in a huge, but overlooked market in a country with the least amount of financial technology innovation in the developed world. Our first act is to become the cheapest and best...

Build secure identity services at Affirm using Python or Kotlin while working remotely from eligible Canadian provinces. Authentication is central to this customer-facing engineering work. As a mid-engineering Software Engineer II in Information Security, you will contribute to customer identity and access management capabilities. You will develop backend...

Build secure identity services at Affirm using Python or Kotlin while working remotely from eligible Canadian provinces. Authentication is central to this customer-facing engineering work. As a mid-engineering Software Engineer II in Information Security, you will contribute to customer identity and access management capabilities. You will develop backend...

Build AI platform services at Affirm using Python or Kotlin, designing reliable backend systems for production workloads at scale. Work remotely within your home country.As a Senior Backend Software Engineer, you will own technical decisions across the AI Platform team. You will build governed interfaces for models, tools, and agents while supporting...

BitGo (NYSE: BTGO) is the digital asset infrastructure company delivering custody, wallets, staking, trading, financing, stablecoins, and settlement services from regulated cold storage. Since 2013, BitGo has focused on accelerating the transition of the financial system to a digital asset economy. BitGo maintains a global presence and multiple regulated...

We are looking for a Software Engineer to join the Identity Decisioning team, responsible for building backend systems that validates consumer identity in all of affirm’s products by satisfying regulatory protocols like KYC The team partners closely with Product, Compliance, Auth, Fraud, and other engineering teams to deliver honest and transparent...

At Affid, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. As we build affirm's advertising platform and evolve Marketplace into a best in class shopping destination, the ability to route and discover is one of the greatest levers for...

Elevate your software engineering career as a Senior Backend Engineer at Justworks in Toronto, Canada. You'll lead significant projects, optimize existing systems, and directly impact customer experiences. As a Senior Software Engineer, you will independently manage large-scale projects from conception to launch. Collaborating with a diverse team, you will...

Join Instrumentl as a Senior Backend Engineer, leading the charge in AI development for nonprofit organizations. Your expertise will directly impact tools that help secure over $1 billion in funding. In this role, you'll be responsible for shipping reliable AI features from inception to deployment. Working with a small but dedicated team, you will...

Architect high-throughput REST APIs with Python and Flask at Akamai, supporting resilient backend infrastructure for enterprise security platforms. As a Senior II Software Engineer, you will lead architecture, design, and implementation for high-performance backend systems. You will establish API standards, improve performance, and advance fault-tolerant...

Elevate location search technology with Uber Maps as a Staff Software Engineer. Lead critical backend services and scalable systems while collaborating across teams in a dynamic environment. In this impactful role, you will set the technical direction for high-stakes Maps Search projects, from initial problem definition to full production delivery. You'll...

Vancouver, BC (Gastown) · Hybrid/remote · Full-time ABOUT THE ROLE Proxxi builds life-saving technology for the world's most dangerous jobs. Our flagship product, the Voltage wearable, protects thousands of frontline workers from electrical hazards — and recently won Best Product at the 2025 IEEE Electrical Safety Workshop. We're scaling fast,...